Warning Systems Flashcards
What are considered GPWS “radio altitude-based” alerts?
-Excessive Descent Rate
-Excessive Terrain Closure Rate
-Altitude loss after takeoff or go-around
-Unsafe terrain clearance when not in the landing configuration.
-Excessive deviation below an ILS glideslope.
Additionally how does the (E)GPWS provide “look-ahead terrain” alerts?
Using an eternal world-wide terrain database.
What condition will inhibit a terrain alert?
An actual windshear warning (aircraft in windshear).
Can terrain and weather radar show together on a display?
No. If one pilot selects terrain and the other pilot selects weather radar, each display updates on alternate sweeps.
What condition inhibits TCAS alerts?
GPWS and windshear warnings.
What must an aircraft be equipped with to allow Resolution Advisories?
Mode C Transponder
Why should TCAS be placed in TA ONLY when performance is limited, such as with an inoperative engine?
To prevent receiving RAs beyond the aircraft’s capabilities.
GPWS windshear alerts are enabled below what altitude?
1500 ft RA. GPWS windshear detection begins at rotation.
When does the weather radar automatically begin scanning for windshear?
(-700) Thrust levers set for takeoff, even if engine is off or IRS not aligned or in flight below 2,300 ft RA(predictive windshear alerts are issued below 1200 ft RA.)
(-800)Thrust levers set for takeoff or in flight below 1,800 ft RA(predictive windshear alerts are issued below 1,200 ft RA).
(MAX) Thrust levers set for takeoff, even if engine is off or IRS not aligned or in flight below 1800 RA (predictive windshear alerts are issued below 1,200 ft RA)
When are Predictive Windshear Cautions inhibited?
Between 80 kts and 400 ft RA
When are Predictive Windshear Warnings inhibited?
Between 100kts and 50 ft RA.
You are terminating a MAX aircraft at a non-maintenance base/station and during the Parking checklist you observe the Number One Engine oil is at 69%. What are you responsibilities?
The captain must arrange for engine oil servicing.
